EP 1386311 B1 20080123 - INVERSE FILTERING METHOD, SYNTHESIS FILTERING METHOD, INVERSE FILTER DEVICE, SYNTHESIS FILTER DEVICE AND DEVICES COMPRISING SUCH FILTER DEVICES
Title (en)
INVERSE FILTERING METHOD, SYNTHESIS FILTERING METHOD, INVERSE FILTER DEVICE, SYNTHESIS FILTER DEVICE AND DEVICES COMPRISING SUCH FILTER DEVICES
Title (de)
VERFAHREN ZUR INVERSEN FILTERUNG, VERFAHREN ZUR SYNTHESEFILTERUNG, ENTSPRECHENDE FILTERUNGSVORRICHTUNGEN UND VORRICHTUNGEN MIT SOLCHEN FILTERUNGSVORRICHTUNGEN
Title (fr)
PROCEDE DE FILTRAGE INVERSE, PROCEDE DE FILTRAGE DE SYNTHESE, DISPOSITIF DE FILTRE INVERSE, DISPOSITIF DE FILTRE DE SYNTHESE ET DISPOSITIFS COMPRENANT CES FILTRES
Publication
Application
Priority
- EP 02726361 A 20020429
- EP 01201615 A 20010502
- IB 0201545 W 20020429
Abstract (en)
[origin: WO02089116A1] An inverse filtering method, comprising: generating a first filtered signal based on an input signal; and combining the first filtered signal with the input signal for obtaining a residual signal. The generating comprises: generating a second filtered signal, the generating being stable and causal; amplifying a of the second filtered signals with a prediction coefficient; obtaining the first filtered signal based on the a second filtered signal storing a first signal related to the input signal in a buffer; and retrieving from the buffer a delayed signal. Further a synthesis filtering method, an inverse filter device and a synthesis filter device are provided.
IPC 8 full level
G10L 19/06 (2013.01); G10L 19/16 (2013.01); H03H 17/02 (2006.01); H03M 7/38 (2006.01)
CPC (source: EP KR US)
G10L 19/04 (2013.01 - EP US); G10L 19/16 (2013.01 - KR)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 02089116 A1 20021107; AT E385026 T1 20080215; BR 0205112 A 20030513; CN 1251177 C 20060412; CN 1465045 A 20031231; DE 60224796 D1 20080313; DE 60224796 T2 20090122; EP 1386311 A1 20040204; EP 1386311 B1 20080123; ES 2299568 T3 20080601; JP 2004520757 A 20040708; JP 4443118 B2 20100331; KR 100941384 B1 20100210; KR 20040002422 A 20040107; PL 207098 B1 20101130; PL 363535 A1 20041129; RU 2003134706 A 20050420; RU 2297049 C2 20070410; US 2004136268 A1 20040715; US 7263542 B2 20070828
DOCDB simple family (application)
IB 0201545 W 20020429; AT 02726361 T 20020429; BR 0205112 A 20020429; CN 02802223 A 20020429; DE 60224796 T 20020429; EP 02726361 A 20020429; ES 02726361 T 20020429; JP 2002586332 A 20020429; KR 20027018076 A 20020429; PL 36353502 A 20020429; RU 2003134706 A 20020429; US 47604103 A 20031028